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Electronic commutation of a DC motor

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rahuljagdale127

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hip4081 30a

Hi iam doing my project on Electronic commutation of a DC motor. Actually this is the first time I am dealing with power electronics. I would like get the circuit for H-bridge which will drive the 5A, 50V motor. The input of the H-bridge will be connected to the PIC microcontroller. Can anyone help me in designing this circuit Schematic for this H-bridhe using HIP4081 or any alternative.
 

how to use hip4080 control dc motor

hey the project is easy enjoy
 

pg_83in said:
hey the project is easy enjoy
Click to expand...
Hey, I think its easy for u not for me, If it would have been easy I would not have asked for the help, right? so if u hve any idea please suggest me.
 

hi , i am new in EDA
try this on your prject
1) use isolated powersupply on power switching and control side.
2) use opto cuplers to isolate control signals form your power switching side.

if u still have a problem on your project i can help u .
 

If you look on the microchip website you will find a wealth of information on motor drive cicuits and sample pic code!
 

narbeh_rob said:
hi , i am new in EDA
try this on your prject
1) use isolated powersupply on power switching and control side.
2) use opto cuplers to isolate control signals form your power switching side.

if u still have a problem on your project i can help u .
Click to expand...
Hi, tahnks for the initial respone.
Could u elborate on your points. Write now the information i have is i will use an H-bridge to drive my motor and I am concentrating on construction of H-bridge.
 

1) send me the H-bridge part number which u use.
2) if it is possible send me the schematic designed file of your project.
 

narbeh_rob said:
1) send me the H-bridge part number which u use.
2) if it is possible send me the schematic designed file of your project.
Click to expand...

Hi, I thing in my case HIP4080 or HIP4081 could be the option. And as far as schematic is concerned, that is where I am struggling. As i said I am really new in this field. It would be great if u could suggest me the Mosfets which I can use or if u can provide the scematic.
ANyway thanks for giving me your time.
 

Look at L620r for Hbridge driver or VNH3A totally integrated full bridge 30A form ST microelectronics. Also interesting IR3220 from IR International rectifier.

these could be simple solutions.
 

for additional data check postings & links in:



regards Polymath
 

narbeh_rob said:
let me know if the application note help u.
Click to expand...
Hi. I have allready gone through the application note . I was not able to get the information about the MOSFETs which I should use. Along with it i am no able to understand how to get the 12v which was shown in application notes.
 

if u go to the pic16f876 data sheet u find more information on PWM
 

fuzzzy said:
Look at L620r for Hbridge driver or VNH3A totally integrated full bridge 30A form ST microelectronics. Also interesting IR3220 from IR International rectifier.
Click to expand...

I have tried VNH3 chip. It's indeed a simple solution for a motor drive problem. However, it has one caveat. The VNH3 chip has 3 pads on the uderside of the chip, which must be soldered for the chip to operate at all. This has to be done through oven soldering, becasue these 3 pads are not exposed.

I haven't used IR3220, but it seems that it can be soldered onto a board with just regular surfacemount soldering with the soldering iron.
 

kender said:
fuzzzy said:
Look at L620r for Hbridge driver or VNH3A totally integrated full bridge 30A form ST microelectronics. Also interesting IR3220 from IR International rectifier.
Click to expand...

I have tried VNH3 chip. It's indeed a simple solution for a motor drive problem. However, it has one caveat. The VNH3 chip has 3 pads on the uderside of the chip, which must be soldered for the chip to operate at all. This has to be done through oven soldering, becasue these 3 pads are not exposed.

I haven't used IR3220, but it seems that it can be soldered onto a board with just regular surfacemount soldering with the soldering iron.
Click to expand...
Actually I was trying to build my H-Bridge, VNH3A would be shortcut, If i wont be able to construct H-bridge I will try it. Anyways Thanks for your suggestions.
 

if the 12v is your problem to supply the chip , simply use DC-DC converter modules . (for example 80 to 12 (input side 80 v and output side is 12v))
 

narbeh_rob said:
if the 12v is your problem to supply the chip , simply use DC-DC converter modules . (for example 80 to 12 (input side 80 v and output side is 12v))
Click to expand...
Hi, could u suggest me the mosfets which I should use.
 

the type of Mosfet is not your problem
u can easily select a mosfet which support the motor nature Current and also with Peak current 10 time bigger than that current
 

narbeh_rob said:
the type of Mosfet is not your problem
u can easily select a mosfet which support the motor nature Current and also with Peak current 10 time bigger than that current
Click to expand...
Hi, Thank u very much for your help. Could u guide me about which optical encoder should I use to sense the dhaft angle of my motor. Please could u tell me how i am going to transfer the information to PIC.
 

rahuljagdale127 said:
Hi, Thank u very much for your help. Could u guide me about which optical encoder should I use to sense the dhaft angle of my motor. Please could u tell me how i am going to transfer the information to PIC.
Click to expand...

I use Fairchild and Honeywell ones. They manufacture number of optical switches/encoders, search on their website in 'InfraRed' category.

I think you could find some schematics on related Application Notes
 

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